Only a medical professional can determine if Viagra is right for a patient. Viagra can cause mild temporary reduction in the blood pressure of a patient which is insignificant for a healthy man, but for a man who has other conditions it may be dangerous. Before using Viagra you need to undergo a thorough medical exam, special tests and procedures to find out if you can safely take Viagra alone or in combination with other medications.

If you have heart diseases it is necessary to determine if you can safely participate in sexual activity and use Viagra. Sexual activity brings extra strain to your heart and may be dangerous for persons with cardiovascular disease.

Remember that you should inform your doctor if you:

• Have heart disease;
• Have blood pressure problems;
• Have had a stroke, heart attack or priapism;
• Have retinitis pigmentosa;
• Have liver or kidney impairment;
• Have hearing or vision problesm;
• Have blood problems;
• Have allergic reactions to any components in Viagra;
• Take other medications for other conditions.

Viagra is a safe medication but for some categories of patients it may be contraindicated, consult your doctor before buying and using this drug.

Viagra works in most cases and for most men. You can improve your sexual function with Viagra tablet and forget about problems in bed. But you cannot have the best results from Viagra treatment if you take the medication incorrectly. Ask your doctor what things you should do to have the beneficial results from the treatment with Viagra.

You can also try these methods to help get the best results from the drug:

1.     Get into the right mood.
Viagra works only if a person is sexually excited.

2.     Do not hurry, relax.
Viagra can work for up to 4 hours. You have enough time. Take Viagra 30 minutes – 1 hour before sex. For some males Viagra works faster. For others, its action may be delayed up to 45 minutes. Still do not worry and hurry.

3.     Avoid fat meals and alcohol.
Viagra effect is delayed by fat meals. Alcohol may lead to the development of unpleasant side effects of the drug. So if possible avoid alcohol.

4.     If at first you cannot have the necessary effect, do not despair, try again.
For most men, Viagra works the first or second time. Some men should make more attempts for the medication start working. If you still don’t get results, ask your doctor for dose change it can improve your situation.

Viagra is  a prescription medication to treat erectile dysfunction (ED) in men only.
Viagra was the first oral medication (PDE5 inhibitor) approved by FDA. Viagra was clinically tested several times and demonstrated high efficacy in the improvement of ED symptoms in men.

Viagra contains Sildenafil citrate, a selective inhibitor of cyclic guanosine monophosphate (cGMP)- specific phosphodiesterase type 5(PDE5). If you are allergic to Sildenafil or other components of the drug, do not take it.

Viagra enables men even with severe ED to respond to sexual stimulation and have an erection. When a person is sexually aroused (it is a requirement for the drug to start working) Viagra helps to increase blood flow into the penis. The penis is filled with enough blood and this causes an erection which is hard and long enough for sex. After sex the erection goes away. Viagra can work for up to 4 hours. This means that you have time to be spontaneous with your sexual partner.

Viagra is safe and generally causes no side effects, ask your doctor about possibility of side effects occurrence and what to do in case side effects appear.

Erections depend on proper blood flow to the penis. Natural erection process depends on many things in the human organism (brain, blood vessels, nerves, etc) which should work properly. When a male is sexually aroused, the brain sends an impulse or message to the arteries in the penis to widen. The blood flows to the penis and fills it. The penis expands, gets rigid, and becomes erect. If anything in the erection process goes wrong the blood flow can be restricted or stopped. This results in erectile problems.

Erectile dysfunction symptoms include:

• Trouble in achieving an erection.
• Trouble in maintaining an erection hard enough for sex.
• Trouble in maintaining an erection before or during sex.

If these problems persist a person is likely to have erectile dysfunction and should consult a doctor to cope with this condition.

ED may be mild, moderate or severe. Some men have difficulty in getting an erection every time they try to have sex. Others may have erectile problems periodically or on occasion. Still ED is a health condition that can be treated and should be treated as soon as possible.

ED can be treated with different methods, but most safe and effective treatment option nowadays is PDE5 inhibitors. The most popular PDE5 inhibitor is Viagra – a prescription medication used to treat ED in men.

Erectile dysfunction (ED) is a condition when a male experiences trouble getting an erection or keeping it for satisfying sexual intercourse.

ED or impotence can be caused by different factors but most cases are characterized by not enough blood flow into the penis, preventing an erection.

Erectile dysfunction is a very common condition affecting approximately 50 % of men over 40 years of age have some difficulty getting and maintaining an erection. So one of the main factors for ED can be the age, still many experts consider that it is not the age, but other conditions which a person acquires with age contribute to ED development.

Like any other conditions ED is not the same for different males or ED is individual. Some men can get an erection, but lose it before sexual intercourse is complete. Some males cannot get an erection at all. ED can be of mild, moderate or severe character, but in all cases there are effective treatment methods that can be helpful in the coping with the problem.

So if you experience ED symptoms consult your doctor. It is the right step to start the treatment of your problem.